/* ====== Tokens ====== */
:root {
  --ink: #0b0e11;
  --paper: #f2f1ed;
  --accent: #ff4d12;
  --accent-ink: #c2410c;
  --lake: #0e6e73;
  --muted: #6b5e51;
  --font-display: 'Anton', 'Arial Narrow', sans-serif;
  --font-body: 'Be Vietnam Pro', system-ui, sans-serif;
  --content: 720px;
  --wide: 1200px;
  --radius: 14px;
  --section-pad: clamp(64px, 10vw, 120px);
  --header-h: 64px;
}

/* ====== Base ====== */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.15; }
.skip-link { position: absolute; left: -999px; }
.skip-link:focus { left: 8px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 16px; z-index: 99; }

.display, .archive-page__title, .hero__title, .section-title {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

/* ====== Header ====== */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.site-header.is-scrolled { background: rgba(242, 241, 237, 0.92); backdrop-filter: blur(10px); box-shadow: 0 1px 0 rgba(11, 14, 17, 0.08); }
.site-header__inner {
  max-width: var(--wide); margin-inline: auto; height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between; padding-inline: 20px;
}
.site-logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-size: 1.5rem; text-decoration: none; letter-spacing: 0.02em; }
.site-logo__mark { width: 34px; height: auto; }
.site-logo span { color: var(--accent); }
.site-nav__list { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; }
.site-nav__list a { text-decoration: none; font-weight: 600; font-size: 0.95rem; }
.site-nav__list a:hover { color: var(--accent); }
@media (max-width: 767px) { .site-nav { display: none; } }

/* ====== Bottom nav (mobile, kiểu native app) ====== */
.bottom-nav {
  position: fixed; inset: auto 0 0 0; z-index: 50;
  display: flex; justify-content: space-around;
  background: rgba(11, 14, 17, 0.96); backdrop-filter: blur(12px);
  padding: 8px 4px calc(8px + env(safe-area-inset-bottom));
}
.bottom-nav a {
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  color: rgba(242, 241, 237, 0.65); text-decoration: none; font-size: 0.7rem; font-weight: 600;
  padding: 4px 14px; border-radius: 10px;
}
.bottom-nav a.is-active { color: var(--accent); }
@media (min-width: 768px) { .bottom-nav { display: none; } }
@media (max-width: 767px) { body { padding-bottom: 76px; } }

/* ====== Hero ====== */
.hero {
  position: relative; min-height: 92svh; display: flex; align-items: flex-end;
  background: var(--ink); color: var(--paper); overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.55; }
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(11, 14, 17, 0.66), rgba(11, 14, 17, 0) 28%),
    linear-gradient(to top, rgba(11, 14, 17, 0.82), rgba(11, 14, 17, 0.1) 55%);
}
.hero__inner { position: relative; max-width: var(--wide); margin-inline: auto; padding: 0 20px clamp(48px, 8vw, 96px); width: 100%; }
.hero__kicker { color: var(--accent); font-weight: 800; text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.85rem; }
.hero__title { display: flex; flex-direction: column; font-size: clamp(3rem, 11vw, 7.5rem); margin: 0.1em 0 0.15em; }
.hero__line { line-height: 0.95; }
.hero__line--outline { color: transparent; -webkit-text-stroke: 2px var(--paper); paint-order: stroke; }
@supports not (-webkit-text-stroke: 1px black) { .hero__line--outline { color: var(--paper); } }
.hero__sub { max-width: 34em; font-size: 1.1rem; opacity: 0.85; }
.hero__watermark {
  position: absolute; right: -4%; bottom: -8%; width: 44vw; max-width: 560px;
  opacity: 0.10; pointer-events: none;
}
@media (max-width: 767px) { .hero__watermark { display: none; } }

/* Hero: cascade hiện dần khi tải trang (1 lần) */
@media (prefers-reduced-motion: no-preference) {
  .hero__inner > * { opacity: 0; animation: sk-rise 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
  .hero__inner > :nth-child(1) { animation-delay: 0.05s; }
  .hero__inner > :nth-child(2) { animation-delay: 0.15s; }
  .hero__inner > :nth-child(3) { animation-delay: 0.30s; }
  .hero__inner > :nth-child(4) { animation-delay: 0.45s; }
}
@keyframes sk-rise { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: none; } }

/* ====== Buttons ====== */
.btn {
  display: inline-block; background: var(--accent); color: var(--ink); text-decoration: none;
  font-weight: 800; padding: 14px 30px; border-radius: 999px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(255, 77, 18, 0.35); }
.btn--ghost { background: transparent; border: 2px solid currentColor; color: inherit; }

/* ====== Sections ====== */
.section { padding-block: var(--section-pad); }
.section--dark { background: var(--ink); color: var(--paper); }
.section__inner { max-width: var(--wide); margin-inline: auto; padding-inline: 20px; }
.section-kicker { color: var(--accent-ink); font-weight: 800; text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.8rem; margin: 0; }
.section--dark .section-kicker { color: var(--accent); }
.section-title { font-size: clamp(2rem, 5vw, 3.25rem); margin: 0.15em 0 0.8em; letter-spacing: 0.01em; }
.section-title .dot, .archive-page__title .dot { color: var(--accent); }

/* ====== Cards ====== */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 28px; max-width: var(--wide); margin-inline: auto; padding-inline: 20px; }
.card { display: flex; flex-direction: column; }
.card__media { display: block; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4 / 3; background: #ddd6c8; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.card:hover .card__media img { transform: scale(1.05); }
.card__media-fallback {
  display: flex; align-items: center; justify-content: center;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--lake), var(--ink));
}
.card__media-fallback::after {
  content: 'STARLAKE RUN';
  font-family: var(--font-display);
  font-size: 1.3rem; letter-spacing: 0.06em;
  color: rgba(242, 241, 237, 0.45);
}
.card__body { padding: 14px 4px 0; }
.card__meta { font-size: 0.85rem; color: rgba(11, 14, 17, 0.72); margin: 0 0 4px; }
.card__cat { color: var(--accent-ink); font-weight: 700; }
.card__title { font-size: 1.2rem; margin: 0; line-height: 1.35; }
.card__title a { text-decoration: none; }
.card__title a:hover { color: var(--accent); }
.section--dark .card__meta { color: rgba(242, 241, 237, 0.6); }

/* ====== Countdown ====== */
.countdown { display: flex; gap: clamp(12px, 3vw, 28px); }
.countdown__cell { text-align: center; }
.countdown__num { font-family: var(--font-display); font-size: clamp(2.4rem, 8vw, 5rem); display: block; line-height: 1; }
.countdown__label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; opacity: 0.7; }

/* ====== Archive & single ====== */
.archive-page { padding: calc(var(--header-h) + 40px) 0 var(--section-pad); }
.archive-page__head { max-width: var(--wide); margin-inline: auto; padding: 0 20px 32px; }
.archive-page__title { font-size: clamp(2.4rem, 7vw, 4.5rem); margin: 0; line-height: 1.18; }
.archive-page__head .section-kicker { margin-bottom: 14px; }
.pagination { max-width: var(--wide); margin: 48px auto 0; padding-inline: 20px; }
.pagination .nav-links { display: flex; gap: 16px; flex-wrap: wrap; }

.single-hero { padding: calc(var(--header-h) + 48px) 20px 24px; max-width: var(--content); margin-inline: auto; }
.single-hero__meta { color: var(--accent-ink); font-weight: 700; font-size: 0.9rem; }
.single-hero__title { font-size: clamp(2rem, 6vw, 3.6rem); margin: 0.2em 0; font-family: var(--font-display); text-transform: uppercase; font-weight: 400; }
.entry-content { max-width: var(--content); margin-inline: auto; padding-inline: 20px; }
.entry-content > .wp-block-gallery, .entry-content > .wp-block-image { max-width: var(--wide); margin-inline: auto; }
.entry-content img { border-radius: calc(var(--radius) / 2); }
.wp-block-gallery { gap: 10px !important; }

/* ====== Footer ====== */
.site-footer { background: var(--ink); color: var(--paper); padding: var(--section-pad) 20px 48px; }
.site-footer__inner { max-width: var(--wide); margin-inline: auto; }
.site-footer__mark { width: 56px; height: auto; margin-bottom: 12px; }
.site-footer__brand { font-family: var(--font-display); font-size: 2rem; margin: 0; }
.site-footer__brand span { color: var(--accent); }
.site-footer__tagline { opacity: 0.7; margin-top: 4px; }
.site-footer__menu { display: flex; gap: 24px; list-style: none; padding: 0; flex-wrap: wrap; }
.site-footer__menu a { color: var(--paper); text-decoration: none; font-weight: 600; }
.site-footer__menu a:hover { color: var(--accent); }
.site-footer__copy { opacity: 0.5; font-size: 0.85rem; margin-top: 32px; }

/* ====== Motion ====== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ====== Bảng vàng ====== */
.records { display: grid; gap: 12px; margin-bottom: 48px; }
.record {
  display: flex; align-items: center; gap: 24px;
  background: #fff; border-radius: var(--radius); padding: 16px 22px;
  box-shadow: 0 1px 4px rgba(11, 14, 17, 0.06);
}
.record__time { font-family: var(--font-display); font-size: 1.9rem; color: var(--accent); min-width: 120px; }
.record__who small { opacity: 0.6; }

/* ====== Thư viện ảnh ====== */
.photo-grid { columns: 3 280px; column-gap: 12px; }
.photo-grid a { display: block; margin-bottom: 12px; border-radius: 10px; overflow: hidden; }
.photo-grid img { width: 100%; transition: transform 0.3s ease, opacity 0.3s ease; }
.photo-grid a:hover img { transform: scale(1.03); opacity: 0.92; }

/* ====== View transitions (chuyển trang mượt như app) ====== */
@view-transition { navigation: auto; }
@media (prefers-reduced-motion: no-preference) {
  ::view-transition-old(root) { animation: sk-fade-out 0.18s ease both; }
  ::view-transition-new(root) { animation: sk-fade-in 0.24s ease both; }
}
@keyframes sk-fade-out { to { opacity: 0; transform: translateY(-6px); } }
@keyframes sk-fade-in { from { opacity: 0; transform: translateY(10px); } }

/* ====== Hiện dần khi cuộn tới ====== */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.5s ease, transform 0.5s ease; }
  .reveal.is-visible { opacity: 1; transform: none; }
}

/* ====== Header trên hero tối (trang chủ + trang có hero tối) ====== */
.home .site-header:not(.is-scrolled),
.has-dark-hero .site-header:not(.is-scrolled) { color: var(--paper); }
.home .site-header:not(.is-scrolled) .site-logo,
.home .site-header:not(.is-scrolled) .site-nav__list a,
.has-dark-hero .site-header:not(.is-scrolled) .site-logo,
.has-dark-hero .site-header:not(.is-scrolled) .site-nav__list a { color: var(--paper); }
.home .site-header:not(.is-scrolled) .site-logo span,
.has-dark-hero .site-header:not(.is-scrolled) .site-logo span { color: var(--accent); }
.home .site-header:not(.is-scrolled) .site-nav__list a:hover,
.has-dark-hero .site-header:not(.is-scrolled) .site-nav__list a:hover { color: var(--accent); }

/* ====== Bài nổi bật (trang chủ) ====== */
@media (min-width: 768px) {
  .card-grid--featured > .card:first-child { grid-column: span 2; }
  .card-grid--featured > .card:first-child .card__title { font-size: 1.6rem; }
  .card-grid--featured > .card:first-child .card__media { aspect-ratio: 16 / 9; }
}

/* ====== Dải ảnh cuộn (photo marquee) ====== */
.photo-marquee { overflow: hidden; background: var(--ink); padding-block: 10px; }
.photo-marquee__track { display: flex; gap: 10px; width: max-content; }
.photo-marquee__track img { height: 150px; width: auto; border-radius: 8px; }
@media (prefers-reduced-motion: no-preference) {
  .photo-marquee__track { animation: sk-marquee 60s linear infinite; }
}
@keyframes sk-marquee { to { transform: translateX(-50%); } }
@media (max-width: 767px) { .photo-marquee__track img { height: 96px; } }

/* ====== Dải số liệu (stats) ====== */
.stats { background: var(--accent); color: var(--ink); padding-block: clamp(48px, 7vw, 80px); }
.stats__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 32px; }
.stat { text-align: center; }
.stat__num { font-family: var(--font-display); font-size: clamp(2.6rem, 6vw, 4.5rem); line-height: 1; display: block; }
.stat__label { font-weight: 600; font-size: 0.9rem; opacity: 0.85; }

/* ====== Dải kêu gọi (CTA band) ====== */
.cta-band { background: var(--ink); color: var(--paper); padding-block: var(--section-pad); text-align: center; }
.cta-band__title { font-family: var(--font-display); text-transform: uppercase; font-weight: 400; font-size: clamp(2.4rem, 7vw, 5rem); line-height: 1.05; margin: 0 0 28px; }
.btn--onink { background: var(--accent); color: var(--ink); }

/* ====== Trang Giới thiệu (gt-) ====== */
/* Hero ink */
.gt-hero {
  background: var(--ink); color: var(--paper);
  padding: calc(var(--header-h) + 64px) 20px clamp(56px, 9vw, 104px);
}
.gt-hero__inner {
  max-width: var(--wide); margin-inline: auto;
  display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(32px, 6vw, 72px);
  align-items: center;
}
.gt-hero__title {
  font-family: var(--font-display); font-weight: 400; text-transform: uppercase;
  font-size: clamp(2.2rem, 5vw, 3.9rem); line-height: 1.05; letter-spacing: 0.01em; margin: 0 0 0.4em;
  text-wrap: balance;
}
.gt-hero__accent { color: var(--accent); }
.gt-hero__lead { max-width: 38em; font-size: 1.12rem; opacity: 0.86; margin: 0 0 28px; }
.gt-hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 0; }
.gt-hero__logo { justify-self: end; }
.gt-hero__logo img { width: 100%; max-width: 280px; height: auto; }
@media (max-width: 767px) {
  .gt-hero__inner { grid-template-columns: 1fr; gap: 28px; }
  .gt-hero__logo { order: -1; justify-self: start; }
  .gt-hero__logo img { max-width: 140px; }
}

/* Story 2 cột */
.gt-story__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center;
}
.gt-story__img { width: 100%; border-radius: var(--radius); object-fit: cover; }
.gt-story__prose p { max-width: 65ch; }
.gt-story__prose .section-title { margin-top: 0; }
@media (max-width: 767px) {
  .gt-story__grid { grid-template-columns: 1fr; }
}

/* Khác biệt (dark) */
.gt-diff__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 3vw, 32px);
}
.gt-diff__card {
  background: rgba(242, 241, 237, 0.06); border-radius: var(--radius);
  padding: clamp(28px, 4vw, 44px);
}
.gt-diff__num {
  font-family: var(--font-display); color: var(--accent);
  font-size: clamp(3.4rem, 7vw, 5.2rem); line-height: 1; display: block; margin-bottom: 0.15em;
}
.gt-diff__title { font-size: 1.35rem; margin: 0 0 0.5em; }
.gt-diff__card p { margin: 0; opacity: 0.82; }
@media (max-width: 767px) {
  .gt-diff__grid { grid-template-columns: 1fr; }
}

/* Lịch tập tuần */
.gt-week-list { margin-top: 8px; }
.gt-week {
  display: grid; grid-template-columns: 90px 1fr; gap: clamp(16px, 4vw, 40px);
  align-items: center; padding: 22px 0; border-top: 1px solid rgba(11, 14, 17, 0.14);
}
.gt-week:last-child { border-bottom: 1px solid rgba(11, 14, 17, 0.14); }
.gt-week__day {
  font-family: var(--font-display); color: var(--accent-ink);
  font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1;
}
.gt-week__body { display: grid; grid-template-columns: minmax(0, 260px) 1fr; gap: clamp(8px, 3vw, 32px); align-items: baseline; }
.gt-week__name { font-weight: 800; font-size: 1.1rem; }
.gt-week__meta { font-weight: 700; color: var(--accent-ink); font-size: 0.85rem; white-space: nowrap; }
.gt-week__desc { opacity: 0.78; }
.gt-week--hl {
  background: var(--ink); color: var(--paper); border-color: var(--ink);
  border-radius: var(--radius); padding-inline: clamp(18px, 3vw, 28px); margin-top: 4px;
}
.gt-week--hl .gt-week__day,
.gt-week--hl .gt-week__meta { color: var(--accent); }
@media (max-width: 600px) {
  .gt-week__body { grid-template-columns: 1fr; }
}

/* Cung đường (pill) */
.gt-route-block { margin-top: clamp(40px, 6vw, 64px); }
.gt-route-head { font-size: 1.05rem; font-weight: 800; margin: 0 0 18px; }
.gt-route-list { display: flex; flex-wrap: wrap; gap: 12px; }
.gt-route {
  border: 1px solid rgba(11, 14, 17, 0.2); border-radius: 999px;
  padding: 8px 18px; font-weight: 600; font-size: 0.95rem;
}

/* Ghi nhận */
.gt-award__grid {
  display: grid; grid-template-columns: auto 1fr; gap: clamp(28px, 5vw, 64px); align-items: center;
}
.gt-award__img { max-width: 360px; width: 100%; border-radius: var(--radius); object-fit: cover; }
.gt-award__text .section-title { margin-top: 0; }
@media (max-width: 767px) {
  .gt-award__grid { grid-template-columns: 1fr; }
  .gt-award__img { max-width: 100%; }
}

/* Quy chế accordion */
.gt-rules__inner { max-width: 880px; margin-inline: auto; }
.gt-acc-list { display: grid; gap: 12px; }
.gt-acc {
  background: #fff; border-radius: var(--radius);
  box-shadow: 0 1px 4px rgba(11, 14, 17, 0.06); overflow: hidden;
}
.gt-acc__sum {
  list-style: none; cursor: pointer; font-weight: 800; font-size: 1.1rem;
  padding: 18px 56px 18px 22px; position: relative;
}
.gt-acc__sum::-webkit-details-marker { display: none; }
.gt-acc__sum::after {
  content: '+'; position: absolute; right: 22px; top: 50%; transform: translateY(-50%);
  font-family: var(--font-display); color: var(--accent); font-size: 1.6rem; line-height: 1;
  transition: transform 0.25s ease;
}
.gt-acc[open] .gt-acc__sum::after { transform: translateY(-50%) rotate(45deg); }
.gt-acc__body { margin: 0; padding: 0 22px 20px 40px; }
.gt-acc__body li { margin-bottom: 8px; }
.gt-acc__body li:last-child { margin-bottom: 0; }
.gt-rules__note { margin-top: 24px; opacity: 0.6; font-size: 0.92rem; }